Hi Stuart. Please collect a full backtrace on this crash - see http://wiki.ubuntu.com/X/Backtracing for guidance.
Seems to be crashing in the libdri2 code while trying to write back to the client program. So it sounds like something that may be client- specific. Can you provide some example links you clicked on so we can see if it is reproducible? ** Description changed: Binary package hint: xorg This has happened a number of times over the last week, but I can't replicate it on demand. It seems to be associated with clicking a link in chromium, although I can't confirm that it's *only* happened in that situation. + + Backtrace: + [370186.294] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80eab1b] + [370186.294] 1: /usr/bin/X (0x8048000+0x5fac8) [0x80a7ac8] + [370186.294] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb78a240c] + [370186.294] 3: /usr/bin/X (_CallCallbacks+0x3e) [0x8074e1e] + [370186.294] 4: /usr/bin/X (WriteToClient+0x267) [0x80a7607] + [370186.294] 5: /usr/lib/xorg/modules/extensions/libdri2.so (ProcDRI2WaitMSCReply+0x62) [0xb7450bf2] + [370186.294] 6: /usr/lib/xorg/modules/extensions/libdri2.so (DRI2WaitMSCComplete+0x75) [0xb744efc5] + [370186.294] 7: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb73d8000+0x226bc) [0xb73fa6bc] + [370186.294] 8: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb73d8000+0x87d2) [0xb73e07d2] + [370186.294] 9: /lib/i386-linux-gnu/libdrm.so.2 (drmHandleEvent+0xf5) [0xb7429665] + [370186.294] 10: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb73d8000+0x7937) [0xb73df937] + [370186.294] 11: /usr/bin/X (WakeupHandler+0x52) [0x8074602] + [370186.294] 12: /usr/bin/X (WaitForSomething+0x1ba) [0x80a1f3a] + [370186.294] 13: /usr/bin/X (0x8048000+0x27f1e) [0x806ff1e] + [370186.294] 14: /usr/bin/X (0x8048000+0x1a81c) [0x806281c] + [370186.295] 15: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xe7) [0xb75a8e37] + [370186.295] 16: /usr/bin/X (0x8048000+0x1a411) [0x8062411] + [370186.295] Segmentation fault at address 0xb497b008 ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: xorg 1:7.6+4ubuntu3 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2 Uname: Linux 2.6.38-8-generic-pae i686 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell] CompositorRunning: compiz DRM.card0.HDMI.A.1: - status: disconnected - enabled: disabled - dpms: Off - modes: - edid-base64: + status: disconnected + enabled: disabled + dpms: Off + modes: + edid-base64: DRM.card0.LVDS.1: - status: connected - enabled: enabled - dpms: On - modes: 1280x800 - edid-base64: AP///////wAwZAYjMjQ5NTISAQOAHRJ4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBKhwAqFAgHjAQMCIAH7QQAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBSUDc3NKMxMzNFV0REAAAA/gAIDBAUKFB/2AEBCiAgAL4= + status: connected + enabled: enabled + dpms: On + modes: 1280x800 + edid-base64: AP///////wAwZAYjMjQ5NTISAQOAHRJ4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBKhwAqFAgHjAQMCIAH7QQAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBSUDc3NKMxMzNFV0REAAAA/gAIDBAUKFB/2AEBCiAgAL4= DRM.card0.VGA.1: - status: disconnected - enabled: disabled - dpms: Off - modes: - edid-base64: + status: disconnected + enabled: disabled + dpms: Off + modes: + edid-base64: Date: Thu May 26 15:53:11 2011 DistUpgraded: Log time: 2011-01-18 17:25:59.814253 DistroCodename: natty DistroVariant: ubuntu GraphicsCard: - Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller]) - Subsystem: Dell Device [1028:0209] - Subsystem: Dell Device [1028:0209] + Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller]) + Subsystem: Dell Device [1028:0209] + Subsystem: Dell Device [1028:0209] MachineType: Dell Inc. XPS M1330 ProcEnviron: - LANGUAGE=en_GB:en - PATH=(custom, user) - LANG=en_US.UTF-8 - LC_MESSAGES=en_GB.utf8 - SHELL=/bin/bash + LANGUAGE=en_GB:en + PATH=(custom, user) + LANG=en_US.UTF-8 + LC_MESSAGES=en_GB.utf8 + SHELL=/bin/bash ProcKernelCmdLine: root=UUID=b572742c-deea-43ec-92d3-b1d1e6b6802f ro quiet splash Renderer: Unknown SourcePackage: xorg UpgradeStatus: Upgraded to natty on 2011-01-18 (127 days ago) dmi.bios.date: 12/26/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.name: 0N6705 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0N6705:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: XPS M1330 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2 version.libdrm2: libdrm2 2.4.23-1ubuntu6 version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2 version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3 version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7 ** Package changed: xorg (Ubuntu) => xserver-xorg-video-intel (Ubuntu) ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Undecided => High ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/788659 Title: X crashes, taking me back to gdm _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp